Arsenal have confirmed that Matteo Guendouzi has joined Olympique Marseille on a permanent basis after a successful loan spell at the Ligue 1 club.
The 23-year-old played all 55 games for Marseille last season as the club qualified for the Champions League, and the French club exercised the clause in the contract to make it a full-time deal.
'Everyone at Arsenal thanks Matteo for his contribution during his time with us and wish him all the best in this next chapter of his career,' the club website said.
The BBC have reported that Marseille have paid a fee of around £9million for the French midfielder.